Miter box



Aug. 4, 1925. 1,548,047

l H. LEG ER MITER BOX Filed Oct. 9. 1923 ILUG? 77.1550 T'. Hei u L @3587.

Patented Aug. 4, 1925.

UNITED STATES HENRY LEGER, F BOSTON, MASSACHUSETTS,

MITER BOX.

Application led October 9, 1923. Serial No. 667,491.

To all whom t may concern:

Be it known that I, HENRY LEGER, a citizen of the United States, residing at Boston, in the county of Suolk and State of Massachusetts, have invented new and useful Im provements in Miter Boxes, of which the following is a specification.

This invention relates to a miter box and has for its object to provide a tool of the l0 character mentioned, said tool being simple in construction, inexpensive to manufacture, light in weight and easy to operate.

The invention consists in the combination and arrangement of parts set forth in the following specification and. particularly pointed out in the claims thereof.

Referring to the. drawings:

Figure H1 represents a plan view of a miter box embodying my invention.

Fig. 2 represents a centrall vertical section partly in elevation taken on the line 2-2 of Fim 1.

Fig. 3 is a vertical section taken on the line 3-3 of Fig. 2 looking in the direction U of the arrow on said line. y

Fig. 4 is an enlarged horizontal section through the vstandard and illustrating the mechanism for lockingY the saw holder to the standard; p Y

Fig. 5 is av detail section illustrating a portion of vthe mechanism for positively locking the standard to the base.

Fig. 6 is a detail section taken on the line 6-6 vof Fig. 1 and illustrating the mechanism for frictionally locking the standard to the base. v

Fig. 7 is a detail vertical section taken on the line 7 7 of Fig. 2.

Like numerals refer to like parts throughout the several views of the drawings.

In the drawings, k10 represents a base which is preferably secured by suitable bolts or screws 11 to a work bench 12. Formed integral with the base 10 and extending upwardly therefrom a suitable distance are a pair of face plates 13,`each provided with a work engaging surface 14, the same constituting a means for positioning work while the latter is beingf subjected to the sawing operation. The face plates 13 may be of any suitable length necessary to furnish a stable abutment against which the work may be held.

Pivotally mounted upon the base 10 is a slots 20,

standard 15, said standard embodying therein a cylindrical tube 16, a bottom platey 17 and a top plate 18. The bottomy plate 17 is secured to the base 10 through the medium of a pivotal stud 19. The standard 15 is provided with a pair of oppositely disposed said slots extending entirely through the wall of said standard and for approximately the entire height thereof.

Mounted within the standard 15 and slidable vertically therein is a saw holder 21, said holder embodying therein a tube 22,

.bar 23 which extends transversely across said tube and a pair of wooden blocks 24 which are located within said tube. The tube 22 has a pair of oppositely disposed longitudinally extending slots 25 which extend entirely through the wall thereof,each

of said slots being provided with an eni larged opening 26 at the upper end thereof. The holder 21 is adapted to receive a back 'saw 27 and the blade 28 of said saw projects through the slots 25 of said saw holder, through a space 30 provided between the oppositely disposed faces of the blocks 24 and through the slots 20 of the standard 15, while a back member 29 of the saw 27 is located within the enlarged portion 26 of said slots 25. I

Pivotally mounted at 31 to the cross bar 23 of the saw holder 21 is a saw guide 32, the latter embodying therein an arm 33, at the outer end of which is a depending member 34. The member 34 is provided with a slot 35 therein to receive the blade 28 of the saw 27, while the upper end of said slot terminates in an enlarged opening 36 in which the back member 29 of the saw is located. As the height of the openings 26 in the saw holder 21 and the opening 36 in the saw guide 32 are somewhat greater than the height of the back member 29 of the saw 27 it is possible, in using the saw, to tip the same a limited amount through a vertical plane while giving said saw its reciprocating movement through the saw holder and guide. In some classes of work, however, as, for example, in' cutting a mortise or. a tenon it is desirable that the saw shall be held perfectly horizontal durin'g the sawing operation. To accomplish this result, a latch 37 is pivotally mounted at 38 upon the arm 33 of the saw guide 32 and said latch is adapted to engage a catch 39 provided upon the cross bar 23 of the saw holder 21 and when said latch is in engagement with said catch, the arm 33 and the saw 27 will be held in a horizontal position.

The saw holder 21 is yieldingly suspended within the standard 15 through the medium of a .spring 40, the upper end of which is attached to a pin 41 located adjacent to the top of said standard, while the lower end of said spring is attached, through the medium of a pin 42, to one of the blocks 24 at a point adjacent to the lower end of the latter.`

Under normal conditions of use it is desirable that the saw holder 21 and the various parts carried thereby may move upwardly and downwardly within the standard 15. There are, nevertheless, times when it is desirable that the saw holder shall be clamped to the standard and a thumb screw 43 is, therefore, provided at a suitable location upon said standard and said thumb screw is adapted to engage the periphery of the saw holder 21 as illustrated in Fig. 4 and thereby clamp said saw holder within said standard.

Means are provided for limiting the downward movement of the saw 27 through the work, said means consisting of a stop 44 which is adjustably secured to the periphery of the standard 15 adjacent to one of the slots 2O and as the saw passes downwardly through the work, the under edge of the back member 29 of said saw engages the upper edge of said stop and the saw is thereby prevented from advancing further into said work.

Means are also provided to lock the standard 15 to the base 10 to prevent a relative movement therebetween during the sawing operation, said means embodyingr therein a locking member 45 which is mounted to slide vertically in suitable bearings within the standard 15. rlChe locking member 45 is bent outwardly at 46 and passes from the interior of the standard 15 through a slot 47 provided therein, and the end of said locking member terminates in a downwardly bent portion 48 which projects through an opening 49 in the bottom plate 17 and into any one of a number of openings 50 provided in the base 10. The openings 50 are so located in the base 10 that the standard 15 may be positively locked to the base, and when so locked, the saw 27 will be disposed at certain definite angles to the front surface 14 of the face plates 13. A spring 51 surrounds the locking member 45 adjacent to the upper end thereof and acts to always force said rod downwardly. The locking member 45 is raised in order that the lower end thereof may be disengaged from the base 10 through the medium of a cam lever 52 pivotally mounted at 53 to the top plate 18 and said lever has an inclined cam surface 54 provided thereon which is adapted to engage a roller 55 fast to the upper end of said locking member. When the cam lever 52 is located in the position illustrated in Fig'. 1, the standard 15 will be locked to the base 10, but when the free end of said lever is moved toward the right in said Fig. 1, the cam surface 54 will engage the lower portion of the roller 55 and the locking member 45 will be lift-ed against the tension of the spring 51 until the lower extremity 48 of said locking member is lifted from engagement with the base 10.

Means are also provided for frictionally engaging the standard 15 and thereby locking said standard to the base 10 to prevent a relative movement therebetween, said means embodying therein a locking member 56 which is mounted to slide in the base 10 and to engage the lo-wer end o-f said standard. At one end the locking member 56 is provided with a bevelled surface 57 and said surface is engaged by a thumb screw 58, the lower extremity of which is conical at 59 and engages the bevelled surface 57. By rotating the thumb screw 58 in the proper direction, the locking member 56 will be forced longitudinally and the end thereof opposite the bevelled end 57 will engage the periphery of the standard 15 with Suthcient friction to prevent the standard from rotating upon the base. A pin 66 projecting through the locking member 56 prevents the same from rotating within the base 10. 1t is desirable that .a board 61 shall be placed upon the work bench 12 in front of the face plates 13 and it is preferable that said board shall be at least as long as the length of said face plates.

rlhe general operation of the device is as follows l/Vork, as illustrated at A, Fig. 2, is placed upon the board 61 with the back edge of said work contacting with the surfaces 14 of the face plates 13 and if it is desired to make a perfectly square cut across said work, the standard 15 is positioned as illustrated in Fig. 1 and is locked in said position through the medium of the locking member 45. If it is intended to saw entirely through the work A, the latch 37 is preferably disengaged from the catch 39 and the saw is operated in the usual well known manner until the work is severed, the saw holder 21 with the saw therein gradually moving downwardly as the saw advances through the work. If a perfectly straight cut is desired and one that shall only pass partially through the work, the arm 33 of the saw guide 32 is held in its horizontal position through the medium of the latch 37 and the stop 44 is adjusted to such a position that the lower edge of the back member 29 of the saw 27 will engage said stop and thereby limit the extent to which the saw mayl move downwardly through the work.

If other than a square cut across the work A is desired, the standard 15 is moved so that the saw 27 Will be positioned at the desired angle to the face plates 13, after which said standard is locked to the base 10 through the medium of the positive lockl'long member 45 or the friction looking mem- When the saw is not in use, the standard may be rotated to position said saw as illustrated in dotted lines in Fig. l and in this position the saw holder and saw will be located entirely above the work bench.

I claim:

l. A miter box comprising, in combination, a base, work positioning means on said base, a standard pivotally mounted upon said base, a locking member mounted in said standard and extending longitudinally7 therethrough, said member interlocking with said base, means to lift said locking member out of engagement with said base, a saw holder slidably mounted within said standard, and a saw guide mounted upon said holder.

2. A miter box comprising, in combination, a base, work positioning means on said base, a standard pivotally mounted upon said base, a yielding locking member slidably mounted in said standard and extending longitudinally therethrough, said member interlocking with said base, a cam lever located adjacent to the top of said standard and adapted to lift said locking member out of engagement with said base, a saw holder slidably mounted within said standard, and a saw guide mounted upon said holder.

3. A miter box comprising, in combination, a base, work positioning means on said base, a tubular standard pivotally mounted upon said base, a yielding locking member slidably mounted in said standard and extending longitudinally therethrough, said member interlocking with said base, a cam lever located adjacent to the top of said standard and adapted to lift said locki-ng member out oi engagement with said base,l

a saw holder slidably mounted within said standard, a spring to yieldingly support said holder within said standard and a saw guide mounted upon said holder.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

HENRY LEGER. Witnesses:

FRANKLIN E. LOW, HAZEL F. BATES. 

